From 6c441e1d613a1f91a53bd215f2ed1f9559194f21 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Tue, 7 Feb 2017 16:28:10 +0800 Subject: [PATCH] intel_iommu: convert dbg macros to trace for trans Another patch to convert the DPRINTF() stuffs. This patch focuses on the address translation path and caching. Signed-off-by: Peter Xu Reviewed-by: Jason Wang Reviewed-by: David Gibson Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/intel_iommu.c | 69 +++++++++++++++---------------------------- hw/i386/trace-events | 10 +++++++ 2 files changed, 34 insertions(+), 45 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 08e43b6ee6..ad304f681c 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -260,11 +260,9 @@ static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, uint64_t *key = g_malloc(sizeof(*key)); uint64_t gfn = vtd_get_iotlb_gfn(addr, level); - VTD_DPRINTF(CACHE, "update iotlb sid 0x%"PRIx16 " iova 0x%"PRIx64 - " slpte 0x%"PRIx64 " did 0x%"PRIx16, source_id, addr, slpte, - domain_id); + trace_vtd_iotlb_page_update(source_id, addr, slpte, domain_id); if (g_hash_table_size(s->iotlb) >= VTD_IOTLB_MAX_SIZE) { - VTD_DPRINTF(CACHE, "iotlb exceeds size limit, forced to reset"); + trace_vtd_iotlb_reset("iotlb exceeds size limit"); vtd_reset_iotlb(s); } @@ -505,8 +503,7 @@ static int vtd_get_root_entry(IntelIOMMUState *s, uint8_t index, addr = s->root + index * sizeof(*re); if (dma_memory_read(&address_space_memory, addr, re, sizeof(*re))) { - VTD_DPRINTF(GENERAL, "error: fail to access root-entry at 0x%"PRIx64 - " + %"PRIu8, s->root, index); + trace_vtd_re_invalid(re->rsvd, re->val); re->val = 0; return -VTD_FR_ROOT_TABLE_INV; } @@ -524,15 +521,10 @@ static int vtd_get_context_entry_from_root(VTDRootEntry *root, uint8_t index, { dma_addr_t addr; - if (!vtd_root_entry_present(root)) { - VTD_DPRINTF(GENERAL, "error: root-entry is not present"); - return -VTD_FR_ROOT_ENTRY_P; - } + /* we have checked that root entry is present */ addr = (root->val & VTD_ROOT_ENTRY_CTP) + index * sizeof(*ce); if (dma_memory_read(&address_space_memory, addr, ce, sizeof(*ce))) { - VTD_DPRINTF(GENERAL, "error: fail to access context-entry at 0x%"PRIx64 - " + %"PRIu8, - (uint64_t)(root->val & VTD_ROOT_ENTRY_CTP), index); + trace_vtd_re_invalid(root->rsvd, root->val); return -VTD_FR_CONTEXT_TABLE_INV; } ce->lo = le64_to_cpu(ce->lo); @@ -704,12 +696,11 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num, } if (!vtd_root_entry_present(&re)) { - VTD_DPRINTF(GENERAL, "error: root-entry #%"PRIu8 " is not present", - bus_num); + /* Not error - it's okay we don't have root entry. */ + trace_vtd_re_not_present(bus_num); return -VTD_FR_ROOT_ENTRY_P; } else if (re.rsvd || (re.val & VTD_ROOT_ENTRY_RSVD)) { - VTD_DPRINTF(GENERAL, "error: non-zero reserved field in root-entry " - "hi 0x%"PRIx64 " lo 0x%"PRIx64, re.rsvd, re.val); + trace_vtd_re_invalid(re.rsvd, re.val); return -VTD_FR_ROOT_ENTRY_RSVD; } @@ -719,22 +710,17 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num, } if (!vtd_context_entry_present(ce)) { - VTD_DPRINTF(GENERAL, - "error: context-entry #%"PRIu8 "(bus #%"PRIu8 ") " - "is not present", devfn, bus_num); + /* Not error - it's okay we don't have context entry. */ + trace_vtd_ce_not_present(bus_num, devfn); return -VTD_FR_CONTEXT_ENTRY_P; } else if ((ce->hi & VTD_CONTEXT_ENTRY_RSVD_HI) || (ce->lo & VTD_CONTEXT_ENTRY_RSVD_LO)) { - VTD_DPRINTF(GENERAL, - "error: non-zero reserved field in context-entry " - "hi 0x%"PRIx64 " lo 0x%"PRIx64, ce->hi, ce->lo); + trace_vtd_ce_invalid(ce->hi, ce->lo); return -VTD_FR_CONTEXT_ENTRY_RSVD; } /* Check if the programming of context-entry is valid */ if (!vtd_is_level_supported(s, vtd_get_level_from_context_entry(ce))) { - VTD_DPRINTF(GENERAL, "error: unsupported Address Width value in " - "context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64, - ce->hi, ce->lo); + trace_vtd_ce_invalid(ce->hi, ce->lo); return -VTD_FR_CONTEXT_ENTRY_INV; } else { switch (ce->lo & VTD_CONTEXT_ENTRY_TT) { @@ -743,9 +729,7 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num, case VTD_CONTEXT_TT_DEV_IOTLB: break; default: - VTD_DPRINTF(GENERAL, "error: unsupported Translation Type in " - "context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64, - ce->hi, ce->lo); + trace_vtd_ce_invalid(ce->hi, ce->lo); return -VTD_FR_CONTEXT_ENTRY_INV; } } @@ -825,9 +809,8 @@ static void vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, /* Try to fetch slpte form IOTLB */ iotlb_entry = vtd_lookup_iotlb(s, source_id, addr); if (iotlb_entry) { - VTD_DPRINTF(CACHE, "hit iotlb sid 0x%"PRIx16 " iova 0x%"PRIx64 - " slpte 0x%"PRIx64 " did 0x%"PRIx16, source_id, addr, - iotlb_entry->slpte, iotlb_entry->domain_id); + trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->slpte, + iotlb_entry->domain_id); slpte = iotlb_entry->slpte; reads = iotlb_entry->read_flags; writes = iotlb_entry->write_flags; @@ -836,10 +819,9 @@ static void vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, } /* Try to fetch context-entry from cache first */ if (cc_entry->context_cache_gen == s->context_cache_gen) { - VTD_DPRINTF(CACHE, "hit context-cache bus %d devfn %d " - "(hi %"PRIx64 " lo %"PRIx64 " gen %"PRIu32 ")", - bus_num, devfn, cc_entry->context_entry.hi, - cc_entry->context_entry.lo, cc_entry->context_cache_gen); + trace_vtd_iotlb_cc_hit(bus_num, devfn, cc_entry->context_entry.hi, + cc_entry->context_entry.lo, + cc_entry->context_cache_gen); ce = cc_entry->context_entry; is_fpd_set = ce.lo & VTD_CONTEXT_ENTRY_FPD; } else { @@ -848,19 +830,16 @@ static void vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, if (ret_fr) { ret_fr = -ret_fr; if (is_fpd_set && vtd_is_qualified_fault(ret_fr)) { - VTD_DPRINTF(FLOG, "fault processing is disabled for DMA " - "requests through this context-entry " - "(with FPD Set)"); + trace_vtd_fault_disabled(); } else { vtd_report_dmar_fault(s, source_id, addr, ret_fr, is_write); } return; } /* Update context-cache */ - VTD_DPRINTF(CACHE, "update context-cache bus %d devfn %d " - "(hi %"PRIx64 " lo %"PRIx64 " gen %"PRIu32 "->%"PRIu32 ")", - bus_num, devfn, ce.hi, ce.lo, - cc_entry->context_cache_gen, s->context_cache_gen); + trace_vtd_iotlb_cc_update(bus_num, devfn, ce.hi, ce.lo, + cc_entry->context_cache_gen, + s->context_cache_gen); cc_entry->context_entry = ce; cc_entry->context_cache_gen = s->context_cache_gen; } @@ -870,8 +849,7 @@ static void vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, if (ret_fr) { ret_fr = -ret_fr; if (is_fpd_set && vtd_is_qualified_fault(ret_fr)) { - VTD_DPRINTF(FLOG, "fault processing is disabled for DMA requests " - "through this context-entry (with FPD Set)"); + trace_vtd_fault_disabled(); } else { vtd_report_dmar_fault(s, source_id, addr, ret_fr, is_write); } @@ -1031,6 +1009,7 @@ static uint64_t vtd_context_cache_invalidate(IntelIOMMUState *s, uint64_t val) static void vtd_iotlb_global_invalidate(IntelIOMMUState *s) { + trace_vtd_iotlb_reset("global invalidation recved"); vtd_reset_iotlb(s); } diff --git a/hw/i386/trace-events b/hw/i386/trace-events index 02aeaab688..88ad5e4c43 100644 --- a/hw/i386/trace-events +++ b/hw/i386/trace-events @@ -20,6 +20,16 @@ vtd_inv_desc_wait_sw(uint64_t addr, uint32_t data) "wait invalidate status write vtd_inv_desc_wait_irq(const char *msg) "%s" vtd_inv_desc_wait_invalid(uint64_t hi, uint64_t lo) "invalid wait desc hi 0x%"PRIx64" lo 0x%"PRIx64 vtd_inv_desc_wait_write_fail(uint64_t hi, uint64_t lo) "write fail for wait desc hi 0x%"PRIx64" lo 0x%"PRIx64 +vtd_re_not_present(uint8_t bus) "Root entry bus %"PRIu8" not present" +vtd_re_invalid(uint64_t hi, uint64_t lo) "invalid root entry hi 0x%"PRIx64" lo 0x%"PRIx64 +vtd_ce_not_present(uint8_t bus, uint8_t devfn) "Context entry bus %"PRIu8" devfn %"PRIu8" not present" +vtd_ce_invalid(uint64_t hi, uint64_t lo) "invalid context entry hi 0x%"PRIx64" lo 0x%"PRIx64 +vtd_iotlb_page_hit(uint16_t sid, uint64_t addr, uint64_t slpte, uint16_t domain) "IOTLB page hit sid 0x%"PRIx16" iova 0x%"PRIx64" slpte 0x%"PRIx64" domain 0x%"PRIx16 +vtd_iotlb_page_update(uint16_t sid, uint64_t addr, uint64_t slpte, uint16_t domain) "IOTLB page update sid 0x%"PRIx16" iova 0x%"PRIx64" slpte 0x%"PRIx64" domain 0x%"PRIx16 +vtd_iotlb_cc_hit(uint8_t bus, uint8_t devfn, uint64_t high, uint64_t low, uint32_t gen) "IOTLB context hit bus 0x%"PRIx8" devfn 0x%"PRIx8" high 0x%"PRIx64" low 0x%"PRIx64" gen %"PRIu32 +vtd_iotlb_cc_update(uint8_t bus, uint8_t devfn, uint64_t high, uint64_t low, uint32_t gen1, uint32_t gen2) "IOTLB context update bus 0x%"PRIx8" devfn 0x%"PRIx8" high 0x%"PRIx64" low 0x%"PRIx64" gen %"PRIu32" -> gen %"PRIu32 +vtd_iotlb_reset(const char *reason) "IOTLB reset (reason: %s)" +vtd_fault_disabled(void) "Fault processing disabled for context entry" # hw/i386/amd_iommu.c amdvi_evntlog_fail(uint64_t addr, uint32_t head) "error: fail to write at addr 0x%"PRIx64" + offset 0x%"PRIx32